4707 Dey Road Liverpool, N.Y. 13088 (315) 701-6751

M.S.KENNEDY CORP.

ISO 9001 CERTIFIED BY DSCC

4202RH70 VOLT 10 AMP RAD-HARD

H-BRIDGE PWM MOTORDRIVER/AMPLIFIER

MIL-PRF-38534 QUALIFIEDCERTIFIED TO CLASS KFEATURES:

User Adjustable PWM Frequency70 Volt, 10 Amp CapabilitySelf-Contained Smart Lowside/Highside Drive CircuitryInternal PWM Generation, Shoot-through ProtectionIsolated Case Allows Direct HeatsinkingOn Board 5Volt Rad-Hard RegulatorAvailable Fully Screened To MIL-PRF-38534 Class K and Class HTotal Dose Rated to 100K RADLogic Level High Side Enable ControlLogic Level Disable Input

TYPICAL APPLICATIONS

Rev. A 5/001

DESCRIPTION: The MSK 4202RH is a radiation hardened complete H-Bridge hybrid intended for use in DC brushed motor controlapplications or Class D switchmode amplification in space or other severe operating environments. The design will exhibithigh resistance to Single Event Effects (SEE), Single Event Gate Rupture (SEGR), total dose up to 100K RAD and neutrontolerance for military applications. All of the drive/control circuitry for the lowside and highside switches are internal to thehybrid, as well as a +5V linear regulator. The PWM circuitry is internal as well, leaving the user to only provide an analogsignal for the motor speed/direction, or audio signal for switchmode audio amplification. The MSK 4202RH is packaged ina space efficient isolated 18 pin power package available in three lead form configurations that can be directly connectedto a heatsink.

EQUIVALENT SCHEMATIC

查询MSK4202HRHD供应商

Rev. A 5/00

1234

56

NOTES:VCC=12V, V+=28V, RSENSE A,B=Ground, CT=N/C, DIS=OV, HEN=N/C unless otherwise specifiedGuaranteed by design but not tested. Typical parameters are representative of actual device performance but are for reference only.Devices shall be 100% tested to subgroups 1,2,3,4, and 7. Subgroup 5 and 6 testing available upon request.Subgroup 1,4,7 TA=TC= +25°C 2,5 TA=TC= +125°C 3,6 TA=TC= -55°CIndustrial grade devices shall be 100% tested at 25°C only.The internal on resistance is for the die only. This should be used for thermal calculations only.

3030303030

ELECTRICAL SPECIFICATIONS

OUTPUT CHARACTERISTICS

VDS(ON) Voltage (Each MOSFET)

Instantaneous Forward Voltage, Each MOSFET

(Intrinsic Diode)

RDS (ON) each mosfet

Leakage Current, Each MOSFET

PWM Frequency

Vcc SUPPLY CHARACTERISTICS

Quiescent Current

+5V OUT

OUTPUT DUTY CYCLE

SWITCHING CHARACTERISTICS

Rise-Time

Fall-Time

Dead-Time

LOGIC CONTROL INPUTS

DIS Input

HEN Input

ID=10A

IS=10A

ID =10A TC =125°C

V+=70V

CT=N/C

CT=300pF TO GND

VIN=2.5V

IOUT=0mA

IOUT=100mA

VIN=2.5VDC Both Outputs

RL=1K A to B

RL=1K A to B

RL=1K A to B

Input Voltage LO

Input Voltage HI

Input Current (High or Low)

Input Voltage LO

Input Voltage HI

Input Current (High or Low)

1

2

3

1

2

3

-

1

2

3

4,5,6

4,5,6

1,2,3

1,2,3

1,2,3

4,5,6

-

-

-

1,2,3

1,2,3

1,2,3

1,2,3

1,2,3

1,2,3

V

V

V

V

V

V

Ω

uA

uA

uA

KHz

KHZ

mA

V

V

%

nS

nS

nS

V

V

uA

V

V

uA

Parameter UnitsMax.

1.0

2.0

1.0

1.8

1.9

1.8

0.1

50

500

50

50

TBD

TBD

5.1

5.25

60

TBD

TBD

-

0.8

-

±250

0.8

-

±250

Typ.

0.5

1.0

0.2

TBD

TBD

TBD

0.075

25

100

25

45

20

20

5.0

5.0

50

75

350

100

-

-

±100

-

-

±100

MSK 4202RH 3

Min.

-

-

-

-

-

-

-

-

-

-

40

TBD

-

4.9

4.75

40

-

-

-

-

2.0

-

-

2.0

-

4Group ASubgroup Test Conditions

2

1

2

2

7

7

-

-

Verify

Verify

-

-

P/F

P/F

Output A=100% Duty Cycle High

Output B = 0% Duty Cycle Low

Output A=0% Duty Cycle Low

Output B = 100% Duty Cycle High

VIN=5V

VIN=OV

6

2

22

2

2

2

APPLICATION NOTES

MSK 4202RH PIN DESCRIPTIONS

Rev. A 5/003

VCC - Is the low voltage supply for powering internallogic and drivers for the lowside and highside MOSFETS.The supplies for the highside drivers are derived from thisvoltage. The +5V regulator also gets its supply voltagefrom this pin.

V+ - Is the high voltage H-bridge supply. The MOSFETSobtain the drive current from this supply pin. The voltageon this pin is limited by the drive IC. The MOSFETS arerated at 100 volts. Proper by-passing to GND with suffi-cient capacitance to suppress any voltage transients, andto ensure removing any drooping during switching, shouldbe done as close to the pins on the hybrid as possible.

OUTPUT A - Is the output pin for one half of the bridge.Increasing the input voltage causes increasing duty cyclesat this output.

OUTPUT B - Is the output pin for the other half of thebridge. Decreasing the input voltage causes increasingduty cycles at this output.

RSENSE A - Is the connection for the bottom of the A halfbridge. This can have a sense resistor connection to theV+ return ground for current limit sensing, or can be con-nected directly to ground. The maximum voltage on thispin is ±2 volts with respect to GND.

RSENSE B - Is the connection for the bottom of the B halfbridge. This can have a sense resistor connection to theV+ return ground for current limit sensing, or can be con-nected directly to ground. The maximum voltage on thispin is ±2 volts with respect to GND.

HEN - Is the connection for enabling the high side outputswitches. When taken low, HEN overrides other inputsand the high side switches remain off. When HEN is high,everything functions normally. An internal pullup to Vccwill keep HEN high if left unconnected.

INPUT - Is an analog input for controlling the PWM pulsewidth of the bridge. A voltage higher than 2.5V will pro-duce greater than 50% duty cycle pulses out of OUTPUTA. A voltage lower than 2.5V will produce greater than50% duty cycle pulses out of OUTPUT B.

DIS - Is the connection for disabling all 4 output switches.DIS high overrides all other inputs. When taken low, ev-erything functions normally. An internal pullup to Vcc willkeep DIS high if left unconnected. This pin should begrounded if not used.

GND - Is the return connection for the input logic and Vcc.

+5V OUT- Is the output of the internal linear regulator.This pin should be bypassed to GND using a 4.7µF tanta-lum capacitor and a 0.1µF ceramic capacitor . This pincan supply up to 500mA of output current for poweringother external circuitry, depending on case temperatureand input voltage.

CT- Is a connection to the internal ramp generator. Anexternal capacitor can be connected from this pin to GNDto lower the PWM frequency. The following chart is use-ful to determine a capacitor for a lower PWM frequency.

CT (pF)TBDTBDTBDTBDTBDTBDTBD

PWM FREQUENCY1KHz10KHz15KHz20KHz25KHz35KHZ40KHz

ABSOLUTE MAXIMUM RATINGS

70V16V10A23A

GND-2V min. to V+ max.500mA

5.5VOV to TBD

V+VCC

IOUT

IPK

VOUT

IOUT

VIN

VIN

-65°C to +150°C300°C

-55°C to +125°C+175°C

2.0°C/W12°C/W

TST

TLD

TC

TJ

θJc

High Voltage SupplyLogic SupplyContinuous Output CurrentPeak Output CurrentOutput Voltage Range(+5V Regulator)Input VoltageLogic Input Voltage

Storage Temperature RangeLead Temperature Range(10 Seconds)Case Operating TemperatureJunction TemperatureThermal Resistance (Output FETS) (+5Vout Regulator)

This is a diagram of a typical application of the MSK 4202RH. The design Vcc voltage is +12 volts and should have a good lowESR bypass capacitor such as a tantalum. The analog input can be an analog speed control voltage from a potentiometer, otheranalog circuitry or by microprocessor and a D/A converter. This analog input gets pulled by the current control circuitry in the properdirection to reduce the current flow in the bridge if it gets too high. The gain of the current control amplifier will have to be set toobtain the proper amount of current limiting required by the system.

Current sensing is done in this case by a 0.1 ohm sense resistor to sense current from both legs of the bridge separately. It isimportant to make the high current traces as big as possible to keep inductance down. The storage capacitor connected to the V+and the hybrid should be large enough to provide the high energy pulse without the voltage sagging too far. A low ESR ceramiccapacitor or large polypropylene capacitor will be required. Mount capacitor as close to hybrid as possible. The connection betweenGND and the V+ return should not be carrying any motor current. The sense resistor signal is common mode filtered as necessaryto feed the limiting circuitry for the microprocessor. This application will allow full four quadrant torque control for a closed loopservo system.

A snubber network is usually required, due to the inductance in the power loop. It is important to design the snubber network tosuppress any positive spikes above 70V and negative spikes below -2V with respect to GROUND.

TYPICAL SYSTEM OPERATION

Rev.A 5/004

The information contained herein is believed to be accurate at the time of printing. MSK reserves the right to makechanges to its products or specifications without notice, however, and assumes no liability for the use of its products.

MECHANICAL SPECIFICATIONS

M.S. Kennedy Corp.8170 Thompson Rd., Cicero, New York 13039-9393

Tel. (315) 699-9201FAX (315) 699-8023

Rev.A 5/005

ALL DIMENSIONS ARE ±0.01 INCHES UNLESS OTHERWISE LABELED

ORDERING INFORMATION MSK4202 H RH U

The above example is a Military grade class H hybrid with leads bent up.

LEAD CONFIGURATIONS S= STRAIGHT; U= BENT UP; D= BENT DOWNRADIATION HARDENEDSCREENING BLANK= INDUSTRIAL; H= MIL-PRF-38534 CLASS H K= MIL-PRF-38534 CLASS KGENERAL PART NUMBER